Overview of PMSM control strategies in electric vehicles: a review

Nowadays, permanent magnet synchronous machines (PMSMs) are preferred by electric vehicle manufacturers due to their attractive features, such as low acoustic noise, high torque/power density and higher efficiency and so on. In addition to these, qualities such as smooth torque production, wide range operation and less malfunctions are expected from electric vehicles. The realization of these features can be improved with the design of PMSM and their control strategies. In this study, PMSM control techniques that have been developed and are being developed in recent years in order to overcome the common challenges such as reduced torque ripples, efficiency optimization and simplified control algorithms are investigated. Therefore, the paper reviews the state-of-the-art drives in particular attention to smoother output torque, extended drive range, simplified control algorithms, less model dependency and so on. Also, recently developed techniques in stator and rotor topologies to reduce torque ripple are briefly reviewed